JPH0612482B2 - Multifunctional indicating controller - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention has a microprocessor, an input / output device, a key-operated setting device, and a display device, and at least two types can be selected by switching built-in software (program). The present invention relates to a multifunctional indicating controller that can be switched as an industrial measuring instrument having different functions.

[Technical background of the invention and its problems]

This kind of multi-function indicating controller is used for controlling a plant, and one indicating controller can be switched and used as, for example, a simple controller, an indicator, an alarm, or the like. As a background of the emergence of such multifunctional indicating controllers, among the industrial measuring instruments used in the plant, although the functions are different, the device configuration, that is, the input / output device, the setting device, etc. are almost the same. There are many things that have a structure,
It can be mentioned that a controller containing a microprocessor has been widely used in recent years.

FIG. 15 shows a configuration example of such a controller. The controller 100 has a CPU 101 as a center, and a program ROM 103, a RAM 104 connected to the CPU 101 via a bus 102, a display circuit 105 having a display unit 106 at the rear, an operation circuit 108 having a setting operation unit 107 at the front, and an analog input circuit 109. , A digital input circuit 110, an analog output circuit 111, and a digital output circuit 112 are combined. The analog input circuit 109 is an interface for input processing the analog input signal AI from the plant, and the digital input circuit 110 is also an interface for input processing the digital input signal DI. The analog output circuit 111 is an interface for outputting the analog output signal AO to the plant, and the digital output circuit 112 is also an interface for outputting the digital output signal DO. The display circuit 105 is an interface for the display unit 106, and the operation circuit 10
Reference numeral 8 denotes an interface for the setting operation unit 107.

FIG. 16 shows a setting display panel 120 incorporating the display unit 106 and the setting operation unit 107. On the setting display panel 120, a process variable (hereinafter, referred to as PV) instruction unit 121 and a set value (hereinafter, S) for displaying an input value.
V) instruction section 122, an operation output (hereinafter referred to as MV) instruction section 123 for output display, setting operation switch SV increase (UP) key 124,
SV decrease (DOWN) key 125, control mode (C)
Selection key 126, automatic mode (A) selection key 12
7, a manual mode (M) selection key 128, an operation output increase (OPEN) key 129, and an operation output decrease (CLOSE) key 130 are provided.

The function specification of the controller 100 is performed through a function mode selection means such as a function of a key on the setting display panel 120 according to a predetermined program, and as shown in FIG. 17, a function mode designation by software ( In accordance with the contents of step 140) (M / A operator, indicator alarm, simple PID, cascade, etc.), M / A operator operation (step 141), indicator alarm operation (step 14)
2), PID controller operation (step 143), cascade operation (step 144), or a setting abnormality notification process (step 145) for notifying the operator of a designation error that does not correspond to any of the above.

For example, when the controller 100 operates as a PID controller, the key 126 on the setting table board 120 is used.
, But the other keys and each indicator are used with meaning. However, when the controller 100 is operated as an M / A operator, for example,
What is effectively used on the setting display panel 120 is the PV instruction section 121, the MV support section 123, the key 127, the key 128,
Only keys 129 and 130, and other S
The V instruction portion 122, the key 124, the key 125, and the key 126 are not necessary, but rather cause an erroneous operation or a reading error.

Furthermore, the same setting display panel 1 for various function modes
The use of 20 requires displaying which function is currently used as an instrument according to the designated function mode. For that purpose, a new display device is added or a new display device is added. An operation for displaying will be required.

[Object of the Invention]

The present invention has been made in consideration of the above circumstances, and it is possible to clarify the function mode in use and to monitor and
It is an object of the present invention to provide a multifunctional indicating controller that is easy and reliable to operate.

[Outline of Invention]

In order to achieve the above-mentioned object, the multi-function indicating controller of the present invention has a main body of an indicating controller equipped with a display unit and operation keys common to each function, depending on the function to be used among the display unit and operation keys. It is characterized in that only a specific display section and operation keys can be used, and a display setting panel for covering unused operation keys is detachably attached.

Furthermore, the multi-function indicating controller of the present invention, in addition to the above,
It is characterized in that the display setting panel is provided with different identifying members depending on the type of the panel, and the indicating controller main body is provided with an identifying means for identifying the panel type from the identifying member.

Example of Invention

1 to 4 show an embodiment of the present invention. First
The front surface of the indicating controller main body 10 shown in the figure has the same structure as the setting display panel 120 shown in FIG. 16, and display sections 11, 12, and 13 for bar graphs and operation keys 14 to 20 are arranged. . On the front surface of the indicating controller main body 10, a relatively flexible display setting panel according to the function mode used,
For example, the display setting panel 30A for the M / A operating device (fourth
The figure) is removably mounted with the help of the panel frame 25. The display setting panel 30A is mounted on the front surface of the indicating controller main body 10 by notching or transparentizing only a display portion and a key portion required as an M / A operation device, so that other unnecessary portions are covered. Is configured. In the case of the M / A operator display setting panel 30A, the PV display unit 31 and the output display unit 32 are made transparent so that the display unit 11 used as the PV display unit and the display unit 13 used as the output display unit can be seen. The former is preliminarily printed with an explanatory display "PV". Keys 17 to 20 are used as operation keys,
Only the corresponding portions are the A selection key 33, the M selection key 34, the output increasing operation key 35, and the output decreasing operation key 3.
6 are each transparent and printed with explanatory characters. The display setting panel 30A is configured so that the display unit 12 and the keys 14 to 16 that are not used here are hidden.

5, 6 and 7 show an alarm gauge display setting panel 30B and a simple PID controller display setting panel 30 used in place of the M / A operating device display setting panel 30A.
C shows a display setting panel 30D for cascade controller. The display setting panel 30B (FIG. 5) uses the display units 11 and 12 as PV display units 37 and 38, and the keys 14 to 18 as alarm setting keys 39 to 43.
The display unit 13 and the keys 19 and 20 are configured not to be used. The display setting panel 30C (FIG. 6) includes display units 11, 12, and 13 for the PV display unit 44 and the SV display unit 4.
5, used as the output display unit 46, keys 14, 15, 1
7, 18, 19, 20 are SV setting keys 47, 48, control mode selecting keys 49, 50, output setting key 51,
The key 16 is used as the key 51 and is not used. The display setting panel 30D (FIG. 7) is the display unit 1.
1 to 13 are used as the PV display section 53, the SV display section 54, and the output display section 55, and the keys 14 to 20 are the SV setting key 5
6, 57, the cascade mode selection key 58, the control mode selection keys 59, 60, and the output setting keys 61, 62.

When each display setting panel described above is mounted on the front surface of the indicating controller main body 10, each setting key portion can be opened / closed by pressing it. Further, necessary information corresponding to each function is printed on each display portion and key portion as shown in the drawing according to each function mode used. Designation (selection) of each function mode is performed according to the program shown in FIG. 17, as already described.

According to the above-described embodiment, only the necessary information is displayed on the display unit each time, the operator's monitorability is improved, and the unused portions need not be concerned. Also, the only key needed each time is the one that appears on the surface,
Unnecessary keys are covered up, which prevents erroneous key operations. Further, even when the same display unit is used for different functions, a dedicated panel is used each time, so that the name and function can be easily confirmed.

In the above-described embodiments, the entire display setting panel has been described as being flexible, but it is possible to appropriately change the display setting panel and the key portion operation function as long as they can be fulfilled. For example, FIGS. 8 and 9
As shown in the figure, a display setting that has the same basic functions as those shown in FIG. 4, but that does not simply cover the unnecessary key part but also physically presses it. It can be panel 70A. This display setting panel 70A is for the M / A operating device, and the keys 14 to 16 for the upper right three keys are unnecessary. These three key parts are not only hidden by the panel, but also have sufficient thickness and rigidity to physically prevent the pressing operation,
On the other hand, the key 33 corresponding to the required keys 17 to 20
The parts up to 36 are made thin so that they can be pressed. According to this configuration, not only the operator does not see unnecessary keys, but also there is no risk of erroneous operation, so the load for software processing corresponding to these erroneous operations can be reduced.

Each display setting panel 30A to 30 shown in FIGS.
When D is selectively attached to the indicating controller main body 10 (FIG. 1) and used, it is possible to identify which function mode the display setting panel is for and to automatically specify it. Various information to each display setting panel, and the second
It is convenient if the identification information can be automatically detected by the panel frame 25 or the indicating controller main body 10 shown in FIGS. 10 to 12 show such an embodiment.

In this embodiment, n push-button switches 75 for identifying the display setting section are arranged at the bottom of the indicating controller main body 10, and correspondingly the uneven portion 7 provided on the back surface of the display setting panel 30.
The pressing state of the push button switch 75 is determined by the concave / convex state of 6, and the functional mode of the display setting panel 30 to be used is identified accordingly, and it is automatically designated to the indicating controller main body 10 side. That is, according to this configuration, the function mode is automatically designated only by mounting the predetermined display setting panel on the indicating controller body 10. Therefore, the operation for designating the function mode is performed separately from the panel mounting work. There is no need to do it. Therefore, it is possible to avoid an error in function designation due to an erroneous operation and a situation in which a difference between the display on the panel and the actual function occurs.

Means for detecting whether or not the desired display setting panel 30 is attached to the indicating controller main body 10th to 1st
It will be described with reference to FIG. The display setting panel 30 has a concavo-convex portion 76 having at least one convex portion according to a preset code other than zero, and the push button switch 75 is selected by mounting the panel according to the convex portion, that is, the code. Is pressed. Push button switch 7
When No. 5 is pressed, "Code 0", that is, the display setting panel is not attached.

The program operates as shown in FIG. 13 using this "code 0", that is, the information "not attached".
That is, in step 81, it is determined whether or not the display setting panel is attached. If it is attached, the program proceeds to the program of FIG. 17 in step 82, and if it is not attached, the initialization processing is performed in step 83. By performing the initialization process in this way, the controller does not operate normally when the display setting panel 30 is not attached. In this way, any erroneous operation by the operator can be prevented. Further, after that, when the display setting panel is mounted, the program can be started from a completely initialized state.

When the display setting panel 30 is newly attached to the indicating controller main body 10 or the attached display setting panel 30 is removed, it is convenient to provide a means for detecting the change information. In this case, the push button switch 75 of the indicating controller main body 10 is made to be a change-responsive type, that is, a non-residual type,
The attachment / detachment of the display setting panel 30 may be detected by the on / off change of the switch.

The program shown in FIG. 14 may be used for initialization using this change information. After the program is started, it is judged in step 91 whether there is no previous designation, that is, whether the memory content is zero. If there is no previous designation (Y), the process proceeds to step 92 and is set with change. In the case of), the process directly proceeds to step 93. Here, it is determined whether or not there is a change. If there is a change (Y), reset / initialization processing is performed in step 95, and then the process returns to step 93. If there is no change (N) in step 93, the program of FIG. 17 is processed in step 94, and the process returns to step 93.

By performing initialization only when there is such a change, initialization can be performed when a mounting / removing operation is performed on the display setting panel, and it is possible to favorably respond to the next function designation. Furthermore, according to this method, even when the display setting panel is not attached, it can always be recognized as one function designation having a certain function, so that one specific function can be achieved even when the display setting panel is not attached. It can be done.

〔The invention's effect〕

As described above, according to the present invention, a display setting panel having a configuration peculiar to a function mode used each time is detachably attached, and an operator is monitored by covering unnecessary display sections and operation keys. Is better, and you don't have to worry about unnecessary keys. Further, since the only operable keys are those displayed on the surface of the display setting panel, it is useful for preventing erroneous operation by the operator.
Further, according to the present invention, by additionally providing the display setting panel with different identifying members depending on the type of the panel, and providing the indicating controller main body with the identifying means for identifying the panel type from the identifying member, It is possible to automatically specify the function as an indicating controller simply by installing the display setting panel of the indicating controller on the main body of the indicating controller. Therefore, it is necessary to perform the operation for specifying the function separately from the panel mounting work. In addition to the above, it is possible to avoid a mistake in the function designation due to an erroneous operation, and a situation in which a difference between the display on the panel and the actual function occurs.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a multi-function indicator controller according to an embodiment of the present invention as viewed from the front side, and FIGS. 2 and 3 are perspective views of a panel frame in the same embodiment. Top view, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are front views of different display setting panels used in combination with the indicating controller main body in the same embodiment, and FIG. 8 and FIG. FIG. 10 is a front view and a rear view showing a different embodiment of the display setting panel, FIG. 10 is a front view of the lower portion of the instruction adjusting body of the embodiment having the display setting panel identifying means, and FIGS. The rear view and the top view of the display setting panel, FIG. 13 is a flowchart showing a program for detecting that the display setting panel of the indicating controller is not mounted, and FIG. 14 is for mounting / removing the display setting panel. Change information accompanying FIG. 15 is a block diagram showing a circuit configuration of a known multi-function indicating controller, FIG. 16 is a front view of a display setting panel of the indicating controller, and FIG. It is a flowchart which shows the function designation | designated program of the same instruction controller. 10 ... Indicating controller main body, 11-13 ... Display section, 14
~ 20 ... key, 25 ... panel frame, 30, 30A, 3
0B, 30C, 30D ... Display setting panel, 75 ... Pushbutton switch, 76 ... Uneven portion.

Claims (2)

[Claims] 1. A multi-function indicating controller having a microprocessor, an input / output device, a key operation type setting device, and a display device, and capable of switching operation as at least two kinds of industrial instruments having different functions by switching built-in software. In the main body of the indicating controller equipped with a display unit and operation keys common to each function, among the display units and operation keys, only a specific display unit and operation key according to the function to be used can be used. A multi-function indicator controller with a display setting panel that covers the operation keys to be used and is detachably attached. 2. A multi-function indicator controller having a microprocessor, an input / output device, a key-operated setting device, and a display device, and capable of switching operation as an industrial instrument of at least two different functions by switching built-in software. In the main body of the indicating controller equipped with a display unit and operation keys common to each function, among the display units and operation keys, only a specific display unit and operation key according to the function to be used can be used. The display setting panel that covers the operation keys to be used is detachably attached, and the display setting panel is provided with different identification members according to the type of panel, and the indicating controller body is provided with a panel from the identification members. A multi-function indicating controller, characterized in that it is provided with an identifying means for identifying the type of the.